Just outside of McLellansville (sp?)....part of the the Francis Marion National Forest. Miles of trail bike, and atv trails.
If heading north on 17, like coming from Charleston/Mount Pleasant...go 17 North to Steed Creek Road (there in McLellansville)..(SC Route 133-S ). Turn left and drive five miles to Halfway Creek Road (SC Route 98-S). Turn right and continue six miles to Round Pond Cycle Trailhead on the left.
They even allow you to camp there overnight. Although it's been a long time since I've camped there, when we did, there was no 'check-in' so to speak, only a box on a post, used for the honor system with envelopes and rates per camper.
As far as I recall, to ride there is 5$ per atv. Literally miles, and miles of trails.
Here's a link:
http://www.fs.usda.gov/recarea/scnfs/recarea/?recid=47319
Google says it's 42 miles from Moncks Corner ... and 44 miles from Murrell's Inlet maybe we could get some other OldMiniBikes folks that are within range to do a ride there some time ?